Dumping-cage for crushers and pulverizers.



burrs srarngs PATIENT FEEQE.

MILTON F. WILLIAMS, OF ST. LOUIS, MISSOURI; ASSIGNOR TO WILLIAMS PATENT (JRUSHER't PULVERIZER OOMPANKOF ST. LOUIS, MISSOURI,

A CORPORATION OF MISSOURI.

DUMPlNG-CAGE FOR CHUSHEFZS AND PULVERlZERS- Patented Nov. 20, 1908.

Application filed July 24, 1905. Serial 110.271.020-

To all whom it may concern:

Be it known that I, MILTON F. WILLIAMS, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Dumping-Cages for Crushers and Pulverizers, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a vertical sectional view through my improved machine. Fig. 2 is a detail view, partly in section, taken on the line 2 2 of Fig. 1 looking in the direction of the arrow. Fig. 3 is a detail View of a modified form of cage-section.

This invention relates to new and useful improvement in'dumping-cages for crushers and pulverizers, the object being tofconstruct a cage in such manner that when the machine chokes it is possible to dump the contents thereof without raising the cover and removing the material fronr the top.

In the operation of my machine, especially where electric motors are employed as a driving medium, it some imes happens that the fuse will blow out or other accidents happen during the time that the machine is in operation, causing the machine to stop and leaving the material being operated upon in the machine. Under these circumstances it is impossible to start the machine without first removing such'material, it being necessary to get the machine up to full speed before introducing the material thereinto to be reduced.

My present invention therefore consists in making the grinding surface or cage, with which the revolving heaters cooperate to reduce the material, wholly or partly movable, means for moving the same extending to the exterior of the machine, whereby in the event that the machine stops with a load or. becomes choked it is possible for the o erator to dump the contents of the cage and ee the machine.

In the drawings, 1 indicates' the side plates of the casing, and 2 is the cover.

3 indicates the breaker-plate, arranged at the front end of the machine and on which the material is first operated upon by the revolving hammers or beaters 4, which are pivotally mounted inthe hammer-su ports 5,

arranged on a transversely-dispose shaft 6.

The cage or grinding-surface is made up of a plurality of pivotally-mounted sections each comprising side bars 15, to which the cagebars 7 are connected, each section preferably having five cage-bars and the central cage-bar of each section extending laterally through openings or bearings formed in the side plates 1 of the machine, so that said sections can rock to dump the contents of the machine.

Extending downwardly from the end of one of the side bars 15 of each section is a perforated lug 8, which lugs are connected together by links 9, the end link having rack-teeth meshing with a pinion 11, secured to a handwheel 12, arranged exteriorly the casing of the machine.

To dump the cage, it is only necessary to operate the hand-wheel to swing the different sections on their pivots, after which the parts may be returned to normal osition.

In Fig. 3, which shows a modi red form of cage, the sections instead of having perf0- rated lugs connected together by links are rovided with toothed segments 8, with W ich meshes a curved rack-bar 9", that may be actuated in any well-known manner.

Having thus described the invention, what" is claimed as new, and desired to be secured by Letters Patent, is-

1. 1.11 a crusher or pulverizer, the combination of a casing, hammers or beaters, a cage or grinding-surface composed of a plurality of sections oscillatingly mounted on fixed pivots, each section consisting of a plurality 90 of grate bars, a connection 'between said oscillatingly mounted sections, and means cooperating with said connection whereby said sections may be simultaneously oscillated to dumpthe contents of the machine; substantially as described.

2. In a crusher or pulverizer, the combination of a casing, revolving hammers or bezlters, a cage or grinding-surface composed of a number of independent sections which are oscillatingly-mounted links connecting said sections, and means cooperatingwith said links and extending to the exterior of 1hr cas- 7 ing, whereby all of said sections may be .-i-

multeneously oscillated to dump the conof the cage-sections to dump the contents of tents of the machine; substantially as dethe machine, and means for actuating said scribed. I rack-bar; substantially as described.

3. In a machine of the character described, In testimony whereof I hereunto eflb; In 15 the combination of a casing,'revolving hamsignature, in the presence of two witnesses, IneIfs or heaters, a sectional ciitge or'grindingthis 14th day of July, 1905. sur ace coo crating therewit 1, each of said T cege-sectioli s being pivotally mounted on :1v MILTOIN WILLIAL fixed pivot, connections between all of said sections, a rack-bar cooperating with said connections for simultaneously actuating all VVitn css cs:

l*. R. CORNWALL, GEORGE BAKEWELL. 

